Vol. 24 (3-4) 2003 Neuro endocrinology letters

The effects of photoperiod on testes in rat: a morphometric and immunohistochemical study.

OBJECTIVE: The aim of this study was to examine the effects of photoperiod on testes in rat.

DESIGN: For this purpose 21 male Wistar rats were used. Animals were divided into three groups. Control rats in group I were kept under 12 hrs light: 12 hrs dark conditions (12L: 12D) for 10 weeks. Animals in group II wer.....